Health : Healthy eating for a better lifestyle
With many countries
now seeing a rapid
rise in obesity among
infants and
children, in May 2014
WHO set up the
Commission on ending
childhood obesity. We
publish its set of policy
options and strategies
to promote diversified,
safe and healthy diets at
all stages of life
Consuming a healthy diet
throughout the life course helps
prevent malnutrition in all its
forms as well as a range of non-
communicable diseases and
conditions. But the increased
production of processed food, rapid
urbanisation and changing lifestyles
have led to a shift in dietary patterns.
People are now consuming more
food high in energy, fats, free sugars
or salt/sodium, and many do not
eat enough fruit, vegetables and
dietary fibre such as whole grains.
The exact make-up of a
diversified, balanced and healthy
diet will vary depending on
individual needs (e.g. age, gender,
lifestyle, degree of physical activity),
cultural context, locally available foods and dietary customs. But
basic principles of what constitute
a healthy diet remain the same.
FOR ADULTS
A healthy diet contains:
- Fruits, vegetables, legumes (e.g.
lentils, beans), nuts and whole
grains (e.g. unprocessed maize,
millet, oats, wheat, brown rice).
- At least 400 g (5 portions) of
fruits and vegetables a day (2).
Potatoes, sweet potatoes, cassava
and other starchy roots are not
classified as fruits or vegetables.
- Less than 10 percent of total
energy intake from free sugars (2,
5) which is equivalent to 50 g (or
around 12 level teaspoons) for a
person of healthy body weight consuming approximately 2000
calories per day, but ideally less than
5 percent of total energy intake for
additional health benefits (5). Most free sugars are added to foods or
drinks by the manufacturer, cook
or consumer, and can also be found
in sugars naturally present in honey,
syrups, fruit juices and fruit juice
concentrates.
- Less than 30 percent of total
energy intake from fats (1, 2, 3).
Unsaturated fats (e.g. found in fish,
avocado, nuts, sunflower, canola
and olive oils) are preferable to
saturated fats (e.g. found in fatty
meat, butter, palm and coconut
oil, cream, cheese, ghee and lard)
(3). Industrial trans fats (found in
processed food, fast food, snack food, fried food, frozen pizza, pies,
cookies, margarines and spreads)
are not part of a healthy diet.
- Less than 5 g of salt (equivalent to
approximately 1 teaspoon) per day
(6) and use iodized salt.
FOR INFANTS AND YOUNG
CHILDREN
In the fi
rst 2 years of a child’s life,
optimal nutrition fosters healthy
growth and improves cognitive
development. It also reduces the
risk of becoming overweight or
obese and developing
NCDs later in life.
Advice on a
healthy diet for
infants and children
is similar to that for
adults, but the following
elements are also important.
- Infants should be breastfed
exclusively during the first six
months of life.
- Infants should be breastfed
continuously until 2 years of age
and beyond.
- From 6 months of age, breast
milk should be complemented
with a variety of adequate, safe and
nutrient dense complementary
foods. Salt and sugars should not
be added to complementary foods.
PRACTICAL ADVICE
ON MAINTAINING A
HEALTHY DIET
Fruits and vegetables
Eating at least 400 g, or 5 portions,
of fruits and vegetables per day
reduces the risk of NCDs and helps
ensure an adequate daily intake of
dietary fi
bre.
In order to improve fruit and
vegetable consumption you can:
- Always include vegetables in
your meals
- Eat fresh fruits and raw vegetables
as snacks
- Eat fresh fruits and vegetables in
season
- Eat a variety of choices of fruits
and vegetables.
Fats
Reducing the amount of total fat
intake to less than 30 percent of
total energy intake helps prevent
unhealthy weight gain in the adult
population.
Also, the risk of developing
NCDs is lowered by reducing
saturated fats to less than 10 percent
of total energy intake, and trans fats
to less than 1 percent of total energy
intake, and replacing both with
unsaturated fats.
Fat intake can be reduced by:
- Changing how you cook –
remove the fatty part of meat; use
vegetable oil (not animal oil); and
boil, steam or bake rather than
fry;
- Avoiding processed foods
containing trans fats; and
- Limiting the consumption of
foods containing high amounts
of saturated fats (e.g. cheese, ice
cream, fatty meat).
Salt, sodium and potassium
Most people consume too
much sodium through salt
(corresponding to an average of
9–12 g of salt per day) and not
enough potassium. High salt
consumption and insufficient
potassium intake (less than 3.5 g)
contribute to high blood pressure,
which in turn increases the risk of
heart disease and stroke (6, 10).
Over 1.7 million deaths could be
prevented each year if people’s salt
consumption were reduced to the
recommended level of less than 5
g per day. People are often unaware
of the amount of salt they consume.
In many countries, most salt comes
from processed foods (e.g. ready
meals; processed meats like bacon,
ham and salami; cheese and salty
snacks) or from food consumed
frequently in large amounts (e.g.
bread). Salt is also added to food
during cooking (e.g. bouillon, stock
cubes, soy sauce and fi
sh sauce) or at the table (e.g. table salt).
Most people consume too
much sodium through salt
(corresponding to an average of
9–12 g of salt per day) and not
enough potassium. High salt
consumption and insufficient
potassium intake (less than 3.5 g)
contribute to high blood pressure
You can reduce salt consumption
by:
- Not adding salt, soy sauce or fish
sauce during the preparation of
food
- Not having salt on the table
- Limiting the consumption of salty
snacks
- Choosing products with lower
sodium content.
- Potassium, which can mitigate
the negative effects of elevated
sodium consumption on blood
pressure, can be increased with
consumption of fresh fruits and
vegetables.
Sugars
The intake of free sugars should be
reduced throughout the lifecourse.
Evidence indicates that in both
adults and children, the intake of
free sugars should be reduced to
less than 10 percent of total energy
intake, and that a reduction to less
than 5 percent of total energy intake
provides additional health benefits.
Sugars intake can be reduced by:
- Limiting the consumption of
foods and drinks containing high
amounts of sugars (e.g. sugar-
sweetened beverages, sugary snacks
and candies); and eating fresh
fruits and raw vegetables as snacks
instead of sugary snacks.